The 2018–19 NBA G League season was the 18th season of the NBA G League, the official minor league basketball organization owned by the National Basketball Association (NBA).
With the addition of the Go-Go, the league slightly realigned its six divisions. The Go-Go were added to the Southeast and Delaware was shifted to the Atlantic.[5]
For the second straight season, the league enacted a six-team playoff, with one-game series for the first three rounds and first-round byes for the top two seeds in each conference. For the Finals, a tiebreaker was required since both teams had the same record, for which there existed three tiebreakers: best winning percentage against each other, record against the other conference, or random drawing, which resulted in the Long Island Nets hosting the first and last game of the Finals against the Rio Grande Valley Vipers. The Nets won Game 1 117–107, but the Vipers won Game 2 127–116 and then won the series in Game 3 129–112 to win their third league title, most for any team in history.[8][9]